dc.contributor.author | Vulule, J M | |
dc.contributor.author | Beach, R F | |
dc.contributor.author | Atieli, F K | |
dc.contributor.author | Mount, D L | |
dc.contributor.author | Roberts, J M | |
dc.contributor.author | Mwangi, R W | |
dc.date.accessioned | 2013-07-16T07:34:43Z | |
dc.date.available | 2013-07-16T07:34:43Z | |
dc.date.issued | 1996 | |
dc.identifier.citation | Vulule, J. M., Beach, R. F., Atieli, F. K., Mount, D. L., Roberts, J. M. And Mwangi, R. W. (1996), Long-term use of permethrin-impregnated nets does not increase Anopheles gambiae permethrin tolerance. Medical and Veterinary Entomology, 10: 71–79. doi: 10.1111/j.1365-2915.1996.tb00084.x | en |
dc.identifier.uri | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2915.1996.tb00084.x/abstract | |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/47968 | |
dc.description.abstract | Previous use of permethrin-impregnated bednets (mosquito nets) and curtains in four Kenyan villages for one year, 1990-91, raised the permethrin LT50 of Anopheles gambiae to 2.4-fold above its baseline value, designated permethrin tolerance (PT), as measured by exposure to 0.25% permethrin-impregnated papers in W.H.O. test-kits. During 1992-93, with ongoing use of permethrin-impregnated nets and curtains, PT regressed slightly compared with the contemporary susceptibility level of An. gambiae from non-intervention villages, to 1.8-fold in 1992 and only 1.6-fold in 1993. Thus the selection pressure of impregnated nets for PT in Angambiae appears to be minimal in our study villages, although the impact of permethrin was demonstrated by a significantly lower parous-rate of Angambiae females in the intervention (63–66%) than in non-intervention (79%) villages, and by reduced malaria transmission (reported elsewhere).
In a selected stock of An. gambiae from the study area, PT did not affect the susceptibility to deltamethrin, fenitrothion, propoxur or DDT. Bioassays described herein provide easy procedures for field-monitoring of mosquito susceptibility/tolerance/resistance to insecticides used for net impregnation in operational programmes. | en |
dc.language.iso | en | en |
dc.publisher | University of Nairobi | en |
dc.subject | Anopheles gambiae;bioassays;insecticide tolerance;permethrin;deltamethrin;pyrethroid-impregnated bednets;curtains;mosquito nets;Kenya | en |
dc.title | Long-term use of permethrin-impregnated nets does not increase Anopheles gambiae permethrin tolerance | en |
dc.type | Article | en |
local.publisher | Department of Zoology | en |